Archives May 2021

In this event, presentations will be made on the experiences of some countries in the Americas in the establishment and operation of active GNSS networks, more specifically on cooperation between various agencies and the establishment of new strategic alliances for the operation of this type of networks as frameworks. national benchmarks.

Exhibitors: Argentina, Brazil, Costa Rica and Chile
National Geographic Institute of the Argentine Republic – IGN-Ar
Brazilian Institute of Geography and Statistics – IBGE
National Geographic Institute of Costa Rica – IGN
University of Santiago de Chile – USACH
National Geology and Mining Service – SERNAGEOMIN (Chile)
Professional Council of Surveying of the province of Buenos Aires (Argentina)

Date: April 6, 2021, 13:00 UTC
Duration: 2 hours + 15 questions

Meeting link:
https://reuna.zoom.us/j/84147002753?pwd=VWlidnlWZjJ4TjdaeEI0RGRZNDhWQT09
Meeting ID: 841 4700 2753
Access code: 103582

Abstract:

The increasing importance of terrestrial gravimetry requires a stable reference system that reflects the precision achieved by modern gravimeters. Over the past decade, the International Association for Geodesy (IAG) has developed a system for achieving accurate, homogeneous, long-term global monitoring of the Earth’s gravity field, while harnessing the potential of current absolute gravity measurements. The webinar will be focused on addressing the concepts around the International Gravity Reference System (IGRS) and its materialization, the IGRF, established from Resolutions N ° 2 (2015) and N ° 4 (2019) of the IAG. Subsequently, the regional impact of the establishment of the IGRS / IGRF will be analyzed through the Argentine-German Geodesy Observatory (AGGO) as the IGRF reference station.

Exhibitors:

Hartmut Wziontek

Federal Agency for Cartography and Geodesy (BKG), Germany
President of the IAG Joint Working Group 2.1.1: Establishment of an International Gravity Reference Frame

Ezequiel D. Antokoletz

Faculty of Astronomical and Geophysical Sciences of the National University of La Plata, Argentina
National Council for Scientific and Technical Research (CONICET), Argentina
Federal Agency for Cartography and Geodesy (BKG), Germany
Coordinator “Gravimetric Reference” within the GT-III of SIRGAS

Date: March 5, 2021
Time: 15:00 UTC
Duration: 45 minutes + 15 questions

Meeting link:
https://reuna.zoom.us/j/81278346287?pwd=OCtzY2hTM1RxRnlUOXVZY0grVTB3dz09
Meeting ID: 812 7834 6287
Access code: 197162

During the SIRGAS2020 virtual Symposium, the SIRGAS Board of Directors approved an updated and extended version of the SIRGAS statute and generated a series of Resolutions related to the creation of the GRFA Working Group within the UN-GGIM Regional Committee: Americas, the Plan of SIRGAS work for the year 2021, the development of a new Joint Action Plan between the PAIGH, UN-GGIM Americas, SIRGAS and GeoSUR, and the recognition of colleagues and organizations that contribute to SIRGAS.

The National Geographic Institute of Peru (IGN-Pe) begins activities as an Experimental Processing Center SIRGAS from GPS week 2120 (August 23, 2020). The main characteristics of this new Experimental Center are:

Name: National Geographic Institute of Peru
Abbreviation: PER
Processed stations: AACR ABMF ABPW AM04 AMTE AN02 ANDS AP01 AQ01 ARCA AREQ AY02 BECE BEJA BNGA BOGT BRMU CHEP CHET CIQE CJ01 CN19 CN30 COL2 CRLP CRO1 CS01 CULC DARI FQNE GLPS GODE AREQ AY02 ICGO JU01 GUA ID LEG01 GOL2 GOLD01 GRE1 GUA ID GODAZ GOL2 GOLD01 GRE1 GUA IP GODAZ GOL2 GOLD01 HIC01 GUA IP GODAZ GOL2 GOLD IN1 GUA IP JU01 LEG01 H LIMN LR01 MANA MD01 MDO1 MEDE MERI MEXI MTY2 NAS0 NEIL OAX2 PASM PI01 PIE1 PU02 RDSD RIDC SAGE SCUB SM01 STJO TAMP TC01 TEG2 TOL2 UC01 UCRI UGTO USNO VIL2 VNDP ZARZ
Software: GAMIT GLOBK 10.71

With this new experimental processing center, SIRGAS is approaching the goal of having a scientific GNSS data processing center in each country in the region. SIRGAS thanks IGN-Pe for this initiative and for its continued support in all activities related to the establishment, maintenance, and development of the reference framework for the Americas.